Welt cementing machine



June 18, 1940. A. EPPLER, JR

WELT CEMENTING MACHINE Filed Deo. 23, 1938 Patented June 18, 1940 PATENT .orfrlclzA WELT CEMENTING MACHINE Andrew Eppler, Jr., Lynn, Mass.,` assignor to United Shoe Machinery Corporation, Borough l of Flemington, N. J., a corporation of New Jersey Application December 23, 1938, Serial No. 247,435

2 Claims.

` This invention relates to oementing machines and is herein illustrated as arrangedto apply cement to an inner surface of a ring welt, such as is shown, for example, in Letters Patent of the 5 United States No. 2,062,288,` granted December l, 1936, upon the application ofP. C. Arnold.

ln the `manufacture of` prewelt shoes, a ring welt, such as illustrated in `the Arnold patent, is sometimes employed. This ring welt is of a length which is sufficient for a single shoe and on one `margin is split twice to provide three flaps, of `which the one at the inside of the ring and the middle ap are sewed to opposite sides ofthe upper and the third or outer flap is attached to the insole. Itis desired to apply a coating of cement, such as latex, to one surfacey of the middle flap without at the same time `coating the `inner surface of the adjacent outer flap.

An object of the invention is to provide an improved cementing means specially adapted for the coating operation. i

As illustrated, and in accordance with a feature ofthe invention, a device is` provided for holding the outer nap away` from the end surface of the coating applying roll and at the same time giving it a permanent set, which will prevent it from springing' back into contact with the surface of the middle nap to be coated until the upper has been inserted therebetween.

In the drawing: l lig.v l isan angular view of the machine embodying the invention;

Fig. 2 is a View in cross-section of the ring welt attached to a` short shoe upper and having `its extension broken back preparatory to assembling with an insole for lasting; and llig. 3 is an enlarged vertical section taken through the ring welt and the welt engaging 4o members. i

The invention is illustrated as applied to a machine of the type shown in Letters Patent of the United States No. 1,851,162, granted March 29, 1932, on the application of J. W. Cosgrove, to which reference may be had for description of the parts of the machine which are not herein fully shown and described. As `in the patented machine, acylindrical `applying rollv l0 `is supplied with cement, such as latex, by means of a transfer roll l2, to which a measured quantity is delivered by a pick-up roll I4 dipping in a trough I6. The` latex is supplied to this trough' I6 from l an inverted bottle I8 and the quantity of the i coatingmaterial delivered to the transfer roll I2 is determined by a doctor roll 20, the position of machine` having guiding` which may be adjusted bymeans of a thumb screw 22. C'ooperatingwith the applying roll is `a work-supporting roll 24 mounted in a` pivoted arm 26, the position of which is determined in accordancewith the thickness of the work by ad- 5 justing a hand wheel 28.

Laterally adjustable upon this arm is a gage 3D having a hooked portion 32 engaging the far edge of a split welt W and arranged tol overlie a middle flap 34 and an inner flap of this ring welt W. 10 It is desired to apply latex to an inner surface of the split welt` such as the upper surface of the middle flap 34 and at the same time to hold the outer flap 36 out of the way, so `that no latex will be applied to the inner surface of this outer flap 15 36 by reason of inadvertent Contact with the end face of the applyingroll Ill.` This is accomplished by means of abeveled plate Ml, the inner face of which lies close to the end face of the applying roll `Ill and the` outer face of which meets the 20 inner face at athin lower edge.. This plate 40 is `integral with an arm 42 having an out-turned lower `end 44 adjustably secured to the gage 30 by screws 45 passing through inclined slots therein. The plate 4I] performs the additional function of 25 holding the outer flap 36 at such a sharp angle with respect to the inner flap 34, that it is possible to apply cement all the way across the surface of the inner flap. At the same time, no coating is applied to the inner face of the `outer flap 36 and 30 thelatter is tilted so abruptly, with respect to the body of the Work, that it is given `a permanent set tending to maintain it in an outstanding position away from the cemented surface, until the latter has had a chance to dry. In the operation of the machine the far edge of the welt is held against the hooked-shaped gage 32 by means of an outer hooked-shaped member 5l) engaging the near edge oi the welt.

The member 5U is adjustably mounted on the gage 40 30 by means of clamp screws 52, which pass thro-ugh slots substantially parallel to the slots receiving the` clamp screws 46.` This allows the outer hooked-shaped member 5&3 to be adjusted for dilerent'widths of welts and, when clamped 4,5 in proper position, a ring welt may be inserted in the machine and allowed to move forward without further assistance from the operator until the who-le of the surface of the middle flap 34 has been coated.

Having described my invention, what I claim as new and desire tosecure byLetters Patent of the United States is:

1. In a machine for coating an inner surface of a strip, the edge of which has been split, form- 55 ing a flap, an applying roll having a substantially cylindrical applying `surface and an end. face, a thin edgedplate extending across the end face of the applying roll toV hold the flap out of Contact therewith, and a member engaging the outer edge of the strip thereby holding the flap against the thin plate. y

2. In a machine for cementing an. inner surface ofia strip of welting, the edge of which has been split to form a ap, an applying roll, a supporting roll coacting therewith, hooked-shaped members forrengaging'opposite edges of the strip, and a plate extending across the end face of the applying roll, said plate being beveled to provide a thin lower edge and being mounted for adjustment toward and away from the applying roll.

ANDREW EPPLER, JR. 

